Footrest for reclining seat chairs which is convertible into a table



' May 29, 1951 J. L. LONDERMAN ETAL v FOOTREST FOR RECLINING SEAT CHAIRSwx-ucu IS CONVERTIBLE INTO A TABLE 4 Sheets-Sheet 1 Filed May 20, 1947INVENTORS.

N A M R E D m L E C N 5 w A L N H O J THEIR. ATTORNEYS.

L. LONDERMAN ET AL 2,555,144 FOOTREST FOR RECLINING SEAT CHAIRS WHICH 1sCONVERTIBLE mro A TABLE Filed May 20, 1947 May 29, 1951 4 Sheets-Sheet 2INVENTORS.

JOHN LAWRENCE LONDERMAN THOMAS WOLFE TH EIR ATTORNEYS,

J. L. LONDERMAN ET AL 2,555,144 FOOTREST FOR RECLINING SEAT CHAIRS WHICHIS CONVERTIBLE INTO A TABLE May 29, 1951 4 Sheets-Sheet 3 Filed May 20,1947 IN VENTORS.

JOH N LAWRENCE LONDERMAN THOMAS WOLFE BY T H EIR ATTORNEYS.

May 29, 1951 J. L. LONDER NETAL 2,555, 44

FOOTREST FOR RECLINING AT CHAIRS WHICH IS CONVERTIBLE INTO A TABLE 4Sheets-Sheet 4 Filed May 20, 1947 V////l// Z/Z//A/l/l/l// -l-NVENTORS.

JOHN LAWRENCE LONDERMAN I THOMAS WOLFE BY WWW-71 THEIR ATTORNEYS.

llllllr-llllll Patented May 29, 1951 UNITED STATES PATENT OFFICEFOOTREST FOR RECLINING SEAT CHAIRS WHICH IS CONVERTIBLE INTO A TABLEJohn Lawrence Londerman, Oakland, and Thomas Wolfe, Pasadena, Calif.

13 Claims.

This invention relates to an attachment for chairs and it relatesparticularly to a novel form of combined foot rest and table for usewith a reclining chair of the type commonly used in airplanes, railroadday coaches, buses and the like.

Reclining chairs have proved to be very successful in assuring thecomfort of passengers of the vehicles in which they are used, but theyare rather closely spaced, and as a consequence, it has been diflicultto provide other facilities for the passengers comfort. For example,tables on which the passengers may work or from which they may be servedtheir meals, or supports for books and newspapers, have to be separatelyor specially provided. Also the seats are not provided with comfortablefoot rests which may adjust to support the legs of the passenger whenthe chair is in a reclining position.

An object of the present invention is to provide a combined foot restand table which may be utilized in the space available in aircraft,buses, trains and the like and which can be stowed away convenientlybeneath the chair when the passenger does not require it.

Another object of the present invention is to provide a foot rest whichis adjustable with the seat and the back of the reclining chair so as todispose it in the most comfortable position for the passenger. I

Another object of the invention is to provide a combined foot rest andtable in which the table can be unfolded so that it is rendered readilyaccessible and is located conveniently for the passenger.

Other objects of the invention will become apparent from the followingdescription of a typical form of foot rest and table embodying thepresent invention.

In accordance with the present invention, we have provided a devicewhich may take the form of an attachment for a reclining type of chairand which may be stowed beneath the chair or withdrawn to place it inposition for use either as a foot rest or a work or serving table orbook or magazine support.

More particularly, the device embodying the present invention mayinclude a frame member which is so arranged that it can be stowedbeneath the chair or drawn out so that its front portion is in front ofthe chair. This frame is provided with a secondary frame elementwhichnormally lies substantially parallel with the first frame but can beerected into a position inclined or perpendicular to the frame or thefloor of the vehicle, This secondary frame carries a pair of platforms,one of which is adapted to receivea cushion so as to serve as a foot andleg rest while the other-forms a table for the use of the passenger.Both of these platforms are pivotally mounted at the upper edge of thesecondary frame and can be swung outwardly so that these platforms canbe moved to a position for use or folded to permit the device to bestowed away. When the table platform is erected, a latching mechanism isactuated for locking the secondary frame in its vertical position.

The secondary frame can be lowered and is provided with a detachablefastening by means of which the secondary frame can be connected to thechair with the foot rest platform inclined forwardly and downwardly fromthe front of the seat, thereby forming an extension of the seat forsupporting the feet and legs of the passenger. Inasmuch as the secondaryframe is pivotally mounted, it can follow the movements of the seat asthe seat moves in response to adjustment of the reclining back.

The new foot rest and table may be formed of light weight materials sothat it is suitable for use in aircraft or other vehicles and may beproportioned suitably to fit within the space available between the rowsof seats in the vehicle.

When the device is stowed away, the aisles and the spaces between theseats are left completely clear thereby avoiding interference with themovements of the passenger.

For a better understanding of the present invention, reference may behad to the accompanying drawings, in which:

Figure 1 is a view in side elevation of a portion of a reclining type ofchair with the combined foot rest and table embodying the inventionshown applied thereto;

Figure 2 is a view in side elevation of a portion of a reclining chairwith the combined foot rest and table shown in extended position andwith the device in position to form a foot rest for the chair;

Figure 3 is a view in section taken on line 33 of Figure 1;

Figure 4 is a view in side elevation illustrating the foot rest andtable erected to place the table in position for use by the passenger;

Figure 5 is a view in front elevation of the erected table;

Figure 6 is a top plan view of a portion of the device with a magazineor book support erected thereon;

Figure '7 is a view in section taken on line l-'-I of Figure 6; andFigure 8 is a view in section taken through one of the uprights of thesecondary frame of the device illustrating details of the looking orlatching mechanism for holding the table in erected position.

The device embodying the present invention is illustrated in conjunctionwith a conventional reclining back chair IU of a type commonly used inairplanes, buses and railway cars. The chair I is provided with anadjustable back, not shown,

which can be moved from a substantially vertical position to a positioninclined at an acute angle to the horizontal. As the back is moved to asharper inclination, the seat ll of the chair moves forward in order toprovide greater support for the body. The above type of chair is wellknown and further description thereof is believed unnecessary.

The device embodying the present invention includes, generally, aprimary frame member l2 which is provided at its front end with a pairof links! 3, [3A for supporting a secondary frame member M for pivotalmovement between a position substantially parallel with the frame l2 anda position substantially perpendicular to the frame l2, as shown inFigure 4. The frame I4 is provided with a platform member 16 which ispivotally connected to the frame M at its inner or upper end, as viewedin Figures 2 and 4, respectively. The platform I3 supports a cushion I!that is positioned to receive the feet and legs of the passenger whenthe frame M is hooked to the front of the seat II by means of the hooks[8 which engage a cross bar 19 secured to the front of the seat.

The upright frame M is also provided with a second platform 20 which ishingedly connected to the top of the frame l4 so that it can be swungfrom a position parallel to the frame [4 to a position perpendicularthereto, as shown in Figure 4.

The table 20 and the foot rest platform It are connected by means of asuitable linkage 2| for holding them in the position shown in Figure 4.The table 20 is further provided with a hingedly mounted table portionor support 22 which may be erected to receive newspapers, magazines,books or the like.

More specifically, the device illustrated in the drawings may include apair of tubular members or sleeves 23 and24 which are mounted in thebrackets 25 and 26 fixed to the legs of the chair Ill. The bracket 25,disclosed in Figure 3, includes a ring-like hub 25a which may beinserted between the upper portion 21a of the leg and a nut 21b threadedon the lower portion of the leg. The bracket 25 also has a semi-circularportion 25b in which the sleeve 23 is mounted.

The bracket 26 disclosed in Figure 3 is similar to the bracket 25 buthas semi-circular end portions 26a and 26b projecting in oppositedirections for receiving the tubular element 24 and an elementcorresponding to the element 23 on the next adjacent chair.

The rear ends of the sleeves 23 and 24 may be mounted in similarbrackets fixed to the rear legs of the chair II].

The sleeves 23 and 24 receive slidably and in telescopic relation theside members 28 and 29 of the frame I2 so that the frame can beprojected from and retracted into the tubular members 23 and 24. Theouter end of the member 28 is provided with a coupling element 30provided with a roller 3! at its lower side so that the frontof theframe i2 is supported by the floor of the vehicle as the frame isextended.

The tubular member 29 is provided with a coupling and rollerconstruction 33a similar to elements 30 and 3|. If desired, the two sideelements 2B and 29 of the frame I 2 may be connected by a cross bracealthough such a brace is not illustrated or necessary for impartingrigidity to the frame 12.

' The bracket 30 on the end of the member 28 serves as a support for oneend of the link l3, the opposite end of the link l3 being connected to aside element Ma of the frame M. The frame I4, as best shown in Figures 5and 6, is of generally U-shaped formation and has a U-shaped foot restbar 32 connecting the side elements Ma and Mb through the medium ofsuitable couplings 33 and 34 at the lower ends of the members Ma and Mb.The foot rest bar 32 projects out of the plane of the frame M to allowthe passengers feet to rest against it.

The link l3 consists of two side plates Ma and [3b which are connectedby a cross bar I30 to impart rigidity thereto and also to bear againstthe back of the side frame member Ma to aid in holding it in the erectposition shown in Figure 4 with the foot rest bar 32 bearing against thefloor so that the frame M cannot tilt clockwise past the position shownin Figure 4.

The other side element Mb is connected by means of a similar link [3A tothe member 29 of the frame [2.

The upper end of the frame l4 carries, as indicated above, the platformI6 which supports the cushion IT. The platform I6 may consist of apan-like member having a rim or flange lBa and a flat bottom, which, ifdesired, may be provided with apertures to reduce its Weight. Theleft-hand end of the platform is, as viewed in Figures 2 and 4, or theupper end of the platform I6, as Viewed in Figure 8, is provided with apair of hinge or pivot lugs 36 and 31 (Figure 6) which are received inthe lugs 38 and 39 mounted in the upper ends of the side members Ma andMb. Referring to Figure 8, the lug 39 has a slot for receiving themember 36 and a collar portion 39a which is joined to the side framemember Mb. The bracket 34 at the lower end of the side frame member Mbalso has a hollow collar portion 34a provided with a restriction 34bhaving an opening 340 therein for receiving a locking lug member 43. Thelocking lug member consists of a hollow cylindrical portion 40a having aprojection 40b on its lower end for engagement in an aperture 4| in alug 42 which extends outwardly from the coupling 30a on the end of theframe member 29. The member 40a is provided with internal threads forreceiving a plug 400 on the end of a link 43 which is connected at itsupper end to the pivot lug 36 by means of a pin 44 disposed eccentric tothe pin or shaft 45 which supports the lug 36 in the member 38. The plug460 is prevented from unscrewing from the member 40a and is retained inadjusted position by means of a coil spring 46 disposed inside themember 40a.

When the platform 16 is disposed parallel with the frame M, as shown inFigures 1, 2, 3 and 8, the projection 40b is retracted. When, however,the platform i6 is raised to the position shown in Figures 4 and '7, thelink 43 is moved downwardly so that the projection-40b engages in theaperture 4| to lock the frame M in substantially perpendicularrelationship to the frame 12. It will be understood that the other endof the platform It is connected to the lug 38 in a similar manner andmay be provided with a similar latching or locking mechanism to aid inholding the frame H! in perpendicular position.

The movement of the platform l6 may be coordinated with that of theplatform which serves as a table. The platform 20 may consist of a metalsheet or plate 20a which has downturned flanges 20b and 260 at itsopposite edges. The ends of the flanges 20b and 280 are pivotallyconnected to the uprights 14a and Mb by means of shafts or pins d5, a ateach end and are disposed inwardly of the lugs 38, 35! on the uprightsIda and Mb. In this way, the table platform 20 can be swung downwardlyWithin or parallel to the frame l4 or can be raised into a positionperpendicular to the frame M, as shown in Figure 4. The table 28 isretained in its raised position by means of the linkage structure 2! ateach edge of the table 29. One linkage includes a link memberliflpivotally connected to the flange 2% and having an elongated slot500. therein for cooperation with the stud or pin 51 mounted on the sideframe member Mb. When the table platform 2!] is raised, the link slidesrelatively to the stud 5! with the stud being received in an angularportion b of the slot 580; to prevent the table 20 from drop ping,-Also, the platform It is connected to the link 50 by means of a link 52which is pivotally connected to the platform i6 and about the midportionof the link 50. Thus, when the table 20 is raised, the platform i6swings into an inclined position and at the same time the looking lug40b moves downwardly to lock the frame 14 in its upright position.

If it is desired to use the table member 20 as a book or paper support,the table portion 22 may be lifted into inclined relation to the table20 about the hinge 54 which connects them near their forward edges. Theportion 22 may be provided with an angle rest or flange 55 near itslower end to prevent the paper onbook therein from sliding on" when theplatform 22 is raised.

The table portion 22 may be maintained in either its raised position orits closed position by, means of the elongated strips of spring metal l56 and 5'! which are connected to the underside of the member 22 bymeans of the hinges 58 and have their opposite ends slidable in thepassages 59 and 60 formed between the under surface of the plate 20a andthe upper surface-of the plates GI and 62, riveted or otherwise securedto the plate 20a. The resiliency and friction of the springs 55 and. 5'!maintain the support 22 in any adjusted position.

From the preceding description of a typical form of device embodying thepresent invention, it will be clear that we have provided a mechanismwhich may be stowed conveniently below the seat of a reclining chair andWhich may be projected to serve as a foot and leg rest, as shown inFigure 2, or as a table or book support, as shown in Figures 4 and 7.Preferably, tlie frames of the device are formed of light weightmaterial, such as aluminum or magnesium tubing and the platforms may beformed of metal or thin plywood. The cushion may be formed of lightweight material, such as sponge latex or the like, in order to keep theWeight of the device to a minimum.

It will be understood that the size and proportions of the various partswill conform to the space available between the rows of seats so as tomake the best use of this space without unduly obstructing the spacebetween the seats.

It will be understood also that the frame i2 may be so arranged that itcan be wholly supported by the chair and that a suitable lockingmechanism may be provided for retaining the frame l2 in either its fullyprojected'or fullyretracted positions, or in any intermediate positiontherebetween.

A particular advantage of the device is that when the frame 14 is sodisposed as to form a foot rest, as shown in Figure 2, the links I3, I3Atogether with the coupling between the frame l i'and the cross bar l9permit the foot rest to follow the movements of the seat as it advancesor retracts, as illustrated in Figures 1 and 2. Also, the location ofthe hooks I8 may be varied, as desired, for example, as shown in Figures4, 6 and 7, the hooks are mounted on the platform It, but they may, ifdesired, be mounted directly on the frame is in a suitable position toengage the cross bar H3 or other portion of the chair seat. Therefore,in view of the modification to which the device is susceptible, the formof the invention described herein should be considered as illustrativeand not as limiting the scope of the following claims.

We claim:

1. A foot rest convertible to a table for reclining chairs having a seatand an adjustable back, comprising a first frame mounted for movementbetween a stowed position beneath said chair and a projected positionhaving its front end disposed in front of said chair, a second framemounted on said first frame for movement between a positionsubstantially parallel to said first frame and a position substantiallyperpendicular thereto, a latch for releasably securing said second framein said perpendicular position, a pair of platforms pivotally connectedto said second frame at the end that is uppermost when said frame is insaid perpendicular position, said platforms being movable betweenpositions substantially parallel with said second frame and positions inwhich they extend outwardly at an angle to and on opposite sides of saidsecond frame, and means for detachably securing said upper end of secondframe to said seat to retain the second frame in a position between saidparallel and said perpendicular positions to form a foot rest.

2. A foot rest convertible to a table for reclin ing chairs having aseat and a back, comprising a first frame mounted for movement between astowed position beneath said chair to a position in which its front endis projected outwardly in front of said chair, a second frame mountedupon said first frame for pivoting movement around the front end of saidfirst frame from a position substantially parallel with said first frameto a position substantially perpendicular thereto, a table platformpivotally mounted on the upper end of said second frame for movementbetween a position substantially parallel to said second frame and aposition extending toward said chair substantially perpendicular to saidsecond frame, a foot rest platform mounted on said second frame anddisposed on the opposite side thereof from said table platform, andmeans on said foot rest platform for detachably connecting it to saidchair to form a foot rest extending downwardly from said seat at anangle to horizontal.

3. A foot rest convertible to a table for reclining chairs having a seatand a back, comprising a first frame mounted for movement between astowed position beneath said chair to a position in which its front endis projected outwardly in front of said chair, a second frame mountedupon said first frame for pivoting movement around the front end of saidfirst frame from a position substantially parallel with said first frameto a position substantially perpendicular thereto, a latch forreleasably retaining said second frame in said perpendicular position, atable platform pivotally mounted on the upper end of said second framefor movement between a position substantially parallel to said secondframe and a position extending toward said chair substantiallyperpendicular to said second frame, a foot rest platform mounted on saidsecond frame and disposed on the opposite side thereof from said tableplatform, and means on said foot rest platform for detachably connectingit to said chair to form a foot rest extending downwardly from said seatat an angle to horizontal.

1 4. A foot rest convertible to a table for reclining chairs having aseat and a back, comprising a first frame mounted for movement between astowed position beneath said chair to a position in which its front endis projected outwardly in front of said chair, a second frame mountedupon said first frame for pivoting movement around the front end ofsaidfirst frame from a position substantially parallel with said first frameto a position substantially perpendicular thereto, a table platformpivotally mounted on the upper end of said second frame for movementbetween I a position substantially parallel to said second frame and aposition extending toward said chair substantially perpendicular to saidsecond frame, a foot rest platform pivotally mounted on said secondframe and disposed on the opposite side thereof from said tableplatform, linkage connecting saidplatforms for moving said platformssimultaneously into and out of substantial parallelism with said secondframe, and means on said foot rest platform for detachably connecting itto said chair to form a foot rest extending downwardly from said seat atan angle to horizontal. v

5. A foot rest convertible to a table for reclining chairs having a seatand a back, comprising a first frame mounted for movement between astowed position beneath said chair to a position in which its front endis projected outwardly in front of said chair, a second frame mountedupon said first frame for pivoting movement around the front end of saidfirst frame from a position substantially parallel with said first frameto a position substantially perpendicular thereto, a table platformpivotally mounted on the upper end of said second frame for movementbetween a position substantially parallel to said second frame and aposition extending toward said chair substantially perpendicular to saidsecond frame, a foot rest platform pivotally mounted on said secondframe and disposed on the opposite side thereof from said table plaform, a latch member connected with said foot rest platform and actuatedby movement of said foot rest platform to lock said second frame to saidfirst frame in said perpendicular position, and means on said foot restplatform for detachably connecting it to said chair to form a foot restextending downwardly from said seat at an angle to horizontal.

6. A foot rest convertible to a table for reclining chairs having a backand a seat, comprising a first frame mounted for sliding movementbetween a stowed position beneath said chair and a projected position inwhich the front end of said frame-is in front of said chair, a secondframe mounted upon said first frame for pivoting movement adjacent tothe front end of said first frame, between a position substantiallyparallel therewith and a position substantially perpendicular thereto, atable platform having one end connected pivotally with the upper end ofsaid second frame when the latter is in said perpendicular position,said table platform being movable between a position substantiallyparallel with said second frame and a position substantiallyperpendicular thereto, a member forming a supporting surface for saidtable platform pivotally connected to the end of said table platformopposite to said one end for movement from a position substantiallyparallel to said platform to a position inclined relatively thereto,means for retaining said member in said positions and positionsintermediate thereof, and a foot rest platform on said second frame onthe opposite side thereof from said table platform.

'7. A foot rest convertible to a table for reclining chairs having aback and a seat, comprising a first frame mounted for sliding movementbetween a stowed position beneath said chair to a projected position inwhich the front end of said rame is in front of said chair, a secondframe mounted upon said first frame adjacent to the front end of saidfirst frame for pivoting movement between a position substantiallyparallel therewith and a position substantially perpendicular thereto, atable platform having one end connected pivotally with the upper end ofsaid second frame when the latter is in said perpendicular position,said table platform being movable between a position substantiallyparallel with second frame and a position substantially perpendicularthereto, a member forming a supporting surface for said table platformpivotally connected to the end of said platform opposite to said one endfor movement from a position substantially parallel to said platform toa position inclined relatively thereto, means for re taining said memberin said positions and positions intermediate thereof, a foot restplatform on said second frame on the opposite side thereof from saidtable platform, and hook members at the upper end of said second framefor detachably connecting said upper end of second frame to said chairto hold said foot rest platform in inclined relation to said chair seat.

8. A foot rest convertible into a table comprising a pair of tubularmembers to be secured beneath the seat of a chair, a pair of elongatedelements telescopically and slidably mounted in said tubular members, alink pivotally connected to the outer end of each of said elongatedelement, a substantially U-shaped member having its sides adjacent toits base pivotally connected to said links to allow pivotal movement ofsaid U-shaped member from a position parallel and in contact with saidelongated elements to a position perpendicular thereto and in engagementwith the outer ends of said elongated elements, a lug having an aperturetherein extending outwardly from the outer end of at least one of saidelongated'elements, and a latching lug on at least one side of saidU-shaped member movable into said aperture to lock said U-shaped memberperpendicular to said elongated members.

9. A foot rest convertible into a table comprising a pair of tubularmembers to be secured beneath the seat of a chair, a pair of elongatedelements telescopically and slidably mounted in said tubular members, alink pivotally connected to the outer end of each of said elongatedelements, a substantially U-shaped member having its sides adjacent toits base pivotally connected to said links to allow pivotal movement ofsaid U-shaped member from a position parallel and in contact with saidelongatedelementsto a position perpendicular thereto and in engagementwith the outer ends of said elongated elements, a lug having an aperturetherein extending outwardly from the outer ends of each of saidelongated elements, a latching lug in each side of said U-shaped membermovable into said aperture to lock said U- shaped member perpendicularto said elongated members, a platform hinged to the upper end of saidU-shaped member, lever means fixed to said platform, and linksconnecting said lever means to said latching lugs to move the latterinto and out of said apertures by moving said platform.

10. A foot rest convertible into a table for chairs comprising a firstframe member slidablebeneath and outwardly from beneath said chair, a

second frame member pivotally supported on said first frame member andmovable from a position overlying said first frame member to a positionsubstantially perpendicular thereto, a latch for releasably retainingsaid second frame in said perpendicular position, a foot rest on oneside of said second frame member, means for connecting said foot rest tosaid chair to hold said foot rest in inclined relation to said chair, atable top on the other side of said second frame member andihingedlyconnected at one edge to the upper end of said frame, and means forreleasably securing said table in substantially perpendicular relationto said second frame member.

11. A foot rest for a chair having a supporting base, and asubstantially horizontally movable seat and an angularly adjustable backmounted on said base, comprising substantially parallel guide membersfixedly mounted on said base below said seat, a frame slidably mountedin said guide members for movement between a position beneath said seatand a position extending in front of and below said seat, a platformmember having a front end adjacent to the outer end of said frame, meansconnecting the front end of said platform member to said outer end ofsaid frame for lengthwise movement and pivoting movement relative tosaid frame member' between'the position substantially parallel with saidframe and a position at an angle to said frame, "and means on the rearedge of said platform member for detachably connecting said platformmember to the front portion of said chair seat to cause said platformmember to move with said seat.

12. A foot rest for a reclining chair having a supporting base, asubstantially horizontally movable seat and an angularly adjustable backmounted on said base, comprising a substantially U shaped first framemember having side arms and a closed end, guide means fixedly mounted onsaid base telescopically receiving said side arms to guide the framemember between a stowed position beneath said chair and a projectedposition in which the closed end of said frame is in front of said chairand below the level of said seat, a second frame member having one endadjacent to said closed end of said first frame member, means connectingsaid one end of said second frame member to said closed end of saidfirst frame member to enable said second frame member to move lengthwiseand to pivot relative to said first frame member between a positionparallel with and resting upon said first frame member and anotherposition at an angle to said first frame member, a platform mounted onsaid second frame member, and hook members adjacent to and supported onsaid opposite end of said second frame member for detachably securingthe latter to said chair seat to cause said second frame member to movewith said seat.

13. A foot rest for a reclining chair having a supporting base, asubstantially horizontally movable seat and an angularly adjustable backmounted on said base, comprising a first frame member slidably connectedto said base for movement between a stowed position beneath said chairand a projected position in which the front of the frame member isdisposed in front of said chair and below said seat, a second framemember, links connecting said first and second frame members adjacenttheir front ends for lengthwise movement of said second frame memberrelative to said first frame member and pivoting movement between aposition substantially parallel with and resting on said first framemember and a position spaced from said first frame member and at anangle thereto, a foot rest platform mounted on said second frame member,and hook members projecting rearwardly from said second frame memberadjacent to its rear end for detachably connecting it to the front ofsaid chair seat to cause said second frame member to move with said seatand relative to said first frame member.

JOHN LAWRENCE LONDERMAN. THOMAS WOLFE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 167,095 Gross, Aug. 24, 1875244,570 Dutton July 19, 1881 293,833 Winchester Feb. 19, 1884 371,373Scarritt Oct. 11, 1887 597,598 Yznaga Jan. 18, 1898 717,949 Travis Jan.6, 1903 1,178,749 Petrow Apr. 11, 1916 1,458,688 Duxbury June 12, 19232,182,598 Owler Dec. 5, 1939 2,185,813 Johnson Jan. 2, 1940 2,236,732Oberhoffken Apr. 1, 1941

